Ans

Unit converter

Metres to centimetres.

Convert m to cm and cm to m. Type in either box and the other follows. A hundred centimetres to the metre. Worth having when a room measured in metres meets furniture listed in centimetres.

m → cmExact definition
—
Metres to centimetres — common values, to 6 significant figures.
mcm
0.5 m50 cm
1 m100 cm
1.5 m150 cm
2 m200 cm
2.5 m250 cm
3 m300 cm
5 m500 cm
10 m1000 cm
25 m2500 cm
100 m10000 cm
1 m=100 cm 1 cm=0.01 m

Definitions

  • The metre is the SI base unit of length, defined by fixing the speed of light at 299 792 458 m/s.
  • The centimetre is a hundredth of a metre. It is the everyday metric unit for body and furniture measurements outside engineering.
  • This conversion is exact by definition. 1 m = 100 cm.
  • The metre is SI; every imperial and US customary length here is defined exactly in terms of it by the 1959 international yard and pound agreement.

How it works

One direction multiplies and the other divides by the same number, so nothing is lost by going back and forth.

The value passes through m, the unit every other length & distance unit on the site is defined against, rather than a number written into this page on its own. That is why the figure here, the figure in the table above and the general length & distance converter always agree.

Display precision limits significant figures rather than decimal places, because one fixed number of decimals is useless across a range this wide. Very large and very small results switch to scientific notation with a proper superscript exponent. The editable box always holds a plain number at full working precision, so you can carry on from either side.

Common questions this answers: how many centimetres in a metre (100), how many metres in a centimetre (0.01), and what 2 m is in centimetres (200 cm).

From the maker of Ans — a scientific calculator you can own. Same idea: a proper instrument, nothing in the way.